Question about 1993 Jeep Grand Wagoneer

1 Answer

Broken gas gauge and faulty sensor.

The gas gauge always reads full or 3/4 full. How can I fix this problem without taking it into a shop. Also, the center consol keeps beeping and giving me warnings like "check oil" or "service 4wd switch." I have had the oil changed twice and I am wondering if there is a switch that I can flip to reset it? I'm sure there will be more work involved in it than flipping a switch, but it doesn't hurt to ask.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,263 Answers

It might not be the gauge itself. it could also be the sending unit in the tank. this however requires you to remove the tank which is not an easy job. if you have a oil light on but the level is good it could be a loose connection on the sensor or the sensor itself. it is located in the engine block and has only 1 wire with a rubber boot connection. as far as the service 4 wheel drive light it may be that there is a loose connection or that the solenoid that ingages/disingages is faulty. please rate this solution. good luck and thanks.

Posted on Aug 29, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

My 97 mountaineer fuel guage always reads full


You should try to reset the fuel gauge. If it doesn't work, then the sensor might be bad. Go to the nearest auto shop to see about getting it fixed or even replaced.

Apr 25, 2015 | 1997 Mercury Mountaineer

1 Answer

2003 chevy malibu gas gauge always on empty, replaced the fuel pump


Need to replace the sensor inside the gas tank. I have a 2008 Malibu with the same problem. It was a faulty fuel gauge sensor.

Jan 31, 2012 | 2003 Chevrolet Malibu

1 Answer

2005 PT Cruiser fuel gauge is wrong suddenly. Put gas in and still shows empty


2005 PT cruiser, i replaced the cam sensor with a aft market sensor my fuel gauge started reading wrong, and it didn't fix my problem so i replaced the cam sensor with a factory sensor it fix my running problem but the fuel gauge still reads wrong, with a full tank of gas the gauge reads 3/4 tank,

Feb 28, 2011 | Chrysler PT Cruiser Cars & Trucks

1 Answer

Faulty gas gauge


Most of the time its is the sending unit in the fuel tank. The test for it is to use a variable resistor that is hooked up to the wiring at the fuel tank and watch the fuel gauge if the gauge works ok thats makes 100% sure its the sending unit. At 245 ohms the gauge should read full, 180 ohms for 3/4 full, 160 ohms for 1/2 tank, 100 ohms for 1/4 tank and 42 ohms for empty. The color of wires at the fuel tank is purple wire and black wire. You can also use fixed value resisters. If the fuel gauge the wires from the sending unit to computer then to gauge for bad connections, shorts, broken wire and bad grounds. If the wires test ok that only leaves insterrment cluster or computer which even most dealers can't test eather one but the insterment cluster would be a more common problem then the computer. But about 95% of the time it will be the fuel level sensor in the gas tank that causes the problem. Good luck.

Jan 08, 2011 | 2000 Pontiac Grand Prix

1 Answer

Gas guage always reads full


It could be a faulty sending unit, which will require the removal of the fuel tank. Make sure all of your fuses are good before you do anything else, as all the gauges are electrical. It is possible you have a bad gauge, but 9 times out of 10, it's the sending unit.

May 24, 2009 | 2003 Chevrolet Venture Passanger

1 Answer

Gas Gauge Trouble


yes the most likly cause is that the fuel level sensor is faulty i would put a gas can in the back and go for a drive the a shop and have them check it. but i think if the truck wont take any more fuel it will be a faulty fuel level sensor.

Mar 24, 2009 | 1999 Cadillac DeVille

1 Answer

Gas Gauge


hello,
the problem could be in the sending unit. this is a wired potentiometer and if you have a broken wire in the potentiometer, then that is what would happen.

you can verify this by grounding the sending unit wire to ground. you will have a full tank reading always. then use the car and see if it will still bounce and very erratic. if does not do that, then the sending unit is the problem. if it still do the erratic reading, then there are more problems.

Dec 11, 2008 | 2004 Saab 9-3

1 Answer

97 montana fuel gauge reading over full all the time


it is a sensor issue take it to a look dealer or a local mechanic and he can fix that for u

Nov 28, 2008 | 1999 Pontiac Montana

9 Answers

2006 Path Finder


yup, nissan has problem with those and yes, there is a service bulletin for the replacement of the fuel level sensor. common problem on your year pathfinder and frontier.

Jul 18, 2008 | 2006 Nissan Pathfinder

Not finding what you are looking for?
1993 Jeep Grand Wagoneer Logo

136 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...